Topic analytical chemistry

University of Illinois chemistry professor Alexander Scheeline wants to see high school students using their cell phones in class. Not for texting or surfing the Web, but as an analytical chemistry instrument. Scheeline developed a method using a few basic, inexpensive supplies and a digital camera more

Stable dyes with sharp absorption and fluorescence emission bands in the red or NIR region of the spectrum, combined with high molar absorption coefficients and high fluorescence quantum yields, may find extensive use in many different fields, such as optical engineering, analytical chemistry, biolo more

The Chemistry Industry Association of Canada supports the results of Health Canada's Report on Human Exposure to Environmental Chemicals. Biomonitoring studies such as this are useful tools for obtaining exposure information, which can be combined with other scientific approaches to advance public h more

Fast, efficient and cost saving chromatography of various samples by application of a liquid stationary phase. Termination of disadvantages of the solid phase material used in classical chromatography. more

Chemometric Spectroscopy is the term used to describe the direct combination of a spectroscopic measurement with a chemometric data evaluation procedure, typically a multivariate statistic method, so providing quick and reliable deduction of the qualitative and quantitative properties of a sample from its spectrum. A multi-linear regression (MLR) or partial least squares (PLS) regression is usually used for the quantitative determination of individual or combined parameters, while substance identification generally relies on techniques such as discriminant or cluster analysis. more

What analyst does not wish for a universal method for processing all his or her samples? Pressure digestion represents just such a procedure for sample digestions and is therefore one of the standard sample preparation procedures currently employed in analytical chemistry for element quantification more